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Article: Physical modeling and validation of porpoises' directional emission via hybrid metamaterials

TitlePhysical modeling and validation of porpoises' directional emission via hybrid metamaterials
Authors
Keywordsbiosonar
directional emission
metamaterials
porpoise's physical model
Issue Date2019
Citation
National Science Review, 2019, v. 6, n. 5, p. 921-928 How to Cite?
AbstractIn wave physics and engineering, directional emission sets a fundamental limitation on conventional simple sources as their sizes should be sufficiently larger than their wavelength. Artificial metamaterial and animal biosonar both show potential in overcoming this limitation. Existing metamaterials arranged in periodic microstructures face great challenges in realizing complex and multiphase biosonar structures. Here, we proposed a physical directional emission model to bridge the gap between porpoises' biosonar and artificial metamaterial. Inspired by the anatomical and physical properties of the porpoise's biosonar transmission system, we fabricated a hybrid metamaterial system composed of multiple composite structures. We validated that the hybrid metamaterial significantly increased directivity and main lobe energy over a broad bandwidth both numerically and experimentally. The device displayed efficiency in detecting underwater target and suppressing false target jamming. The metamaterial-based physical model may be helpful to achieve the physical mechanisms of porpoise biosonar detection and has diverse applications in underwater acoustic sensing, ultrasound scanning, and medical ultrasonography.
Persistent Identifierhttp://hdl.handle.net/10722/318815
ISSN
2023 Impact Factor: 16.3
2023 SCImago Journal Rankings: 2.934
PubMed Central ID
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorDong, Erqian-
dc.contributor.authorZhang, Yu-
dc.contributor.authorSong, Zhongchang-
dc.contributor.authorZhang, Tianye-
dc.contributor.authorCai, Chen-
dc.contributor.authorFang, Nicholas X.-
dc.date.accessioned2022-10-11T12:24:37Z-
dc.date.available2022-10-11T12:24:37Z-
dc.date.issued2019-
dc.identifier.citationNational Science Review, 2019, v. 6, n. 5, p. 921-928-
dc.identifier.issn2095-5138-
dc.identifier.urihttp://hdl.handle.net/10722/318815-
dc.description.abstractIn wave physics and engineering, directional emission sets a fundamental limitation on conventional simple sources as their sizes should be sufficiently larger than their wavelength. Artificial metamaterial and animal biosonar both show potential in overcoming this limitation. Existing metamaterials arranged in periodic microstructures face great challenges in realizing complex and multiphase biosonar structures. Here, we proposed a physical directional emission model to bridge the gap between porpoises' biosonar and artificial metamaterial. Inspired by the anatomical and physical properties of the porpoise's biosonar transmission system, we fabricated a hybrid metamaterial system composed of multiple composite structures. We validated that the hybrid metamaterial significantly increased directivity and main lobe energy over a broad bandwidth both numerically and experimentally. The device displayed efficiency in detecting underwater target and suppressing false target jamming. The metamaterial-based physical model may be helpful to achieve the physical mechanisms of porpoise biosonar detection and has diverse applications in underwater acoustic sensing, ultrasound scanning, and medical ultrasonography.-
dc.languageeng-
dc.relation.ispartofNational Science Review-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectbiosonar-
dc.subjectdirectional emission-
dc.subjectmetamaterials-
dc.subjectporpoise's physical model-
dc.titlePhysical modeling and validation of porpoises' directional emission via hybrid metamaterials-
dc.typeArticle-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1093/nsr/nwz085-
dc.identifier.pmid34691953-
dc.identifier.pmcidPMC8291406-
dc.identifier.scopuseid_2-s2.0-85079789712-
dc.identifier.volume6-
dc.identifier.issue5-
dc.identifier.spage921-
dc.identifier.epage928-
dc.identifier.eissn2053-714X-
dc.identifier.isiWOS:000512966500017-

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